hopeful

an ambitious and aspiring young person; "a lofty aspirant"; "two executive hopefuls joined the firm"; "the audience was full of Madonna wannabes"

having or manifesting hope; "a line of people hopeful of obtaining tickets"; "found a hopeful way of attacking the problem"

full or promise; "had a bright future in publishing"; "the scandal threatened an abrupt end to a promising political career"; "a hopeful new singer on Broadway"